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Finding the Fourth Proportional to 552,655.54, 762,659.25 and 307,636.41

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Solution

The fourth proportional to 552,655.54, 762,659.25 and 307,636.41 is: 424,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,655.54 : 762,659.25 = 307,636.41 : x
  2. Step 2: Convert to fraction form
    552,655.54/762,659.25 = 307,636.41/x
  3. Step 3: Cross multiply
    552,655.54x = 762,659.25 × 307,636.41
  4. Step 4: Simplify right side
    552,655.54x = 234,621,753,723.29
  5. Step 5: Solve for x
    x = 234,621,753,723.29/552,655.54
  6. Step 6: Final answer
    x = 424,535.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.